Save water, collect rain

Rain barrels and cisterns are now being provided to San Francisco residents for an even-steeper discount price under a program by the city’s Public Utilities Commission.

The barrels and cisterns, which are now being offered at half off retail, are used to store rainwater collected from roofs of homes and businesses — water that would flow into the city’s sewer system, which can easily flood in heavy rains. Instead, residents can use the stored rainwater to irrigate plants or even flush toilets if they have proper permits.

A rain barrel usually holds no more than 60 gallons, while a cistern is larger and can be stored above or below ground.

Since 2008 the SFPUC has distributed 517 rain barrels and 37 cisterns through its Discounted Rain Barrels and Cisterns Program, creating 40,000 gallons of reusable water that would normally run into the sewer, officials said.

Five San Francisco schools are using cisterns to teach students about water conservation; another four are expected to join this year.

Discounts include $40 off the purchase of a 60-gallon rain barrel, with an additional $60 off every subsequent rain barrel purchased up to a combined total of 660 gallons. The barrels normally cost $125. A 205-gallon cistern that normally goes for $287 can be purchased for $160.

Both rain barrels and cisterns can be purchased at the Urban Farmer Store at 2833 Vincent St. Proof of residency is required.